Coupling for hoses and the like



Feb. 1, 1949. J. A. JENSEN- COUPLING FOR HOSES AND THE LIKE 2Sheets-Sheet 1 Filed Aug. 9, 1947 M Fzcal INVENTOR: James JZ knsen, y WW ATTORNEYS.

Fil ed Aug. 9, 1947 2 Sheets-Sheet 2 INVENTOR: James .4 Jensen,

WITNESSES ATTORNEYS.

Patented Feb. 1, 1949 GOUPLING FOR HOSESLA'ND THE LIKE James A. Jensen,Haverford,...Pa., assignor to Philadelphia, Valve Company, Philadelphia,.P.a.,

. a ctr-partnership.

ApplicationAugust 9, 19417.; SerialiNo; 7.673792:

This invention relates tocouplings useful in connecting tube or pipesections one to another. More particularly itxhas reference to couplingsof a quick-release typexiorrconnecting hoses to pipes, for example;hoses such as carried'on oil or other liquid commodity deliveryvehiclesto-the fil-lgpipes of: underground storage tanks:

In the. main, my. invention. isdirected toward provisionof a.couplingintended more particularly for the latter purpose, which is.simple in. construction; which is inexpensive. toqfabricate. inquantity; which is. easily and.quickly appliedL-ancl removed; which issecure against the, possibility of accidental displacement whenattached; and which, moreover; canfibe relied" upon" for; main.- tenanceof a fiuid'tight seal betweenthecoupled parts.

How the foregoing and other important advantages areattainedin practicewill appear from the following detailed description oithe-attacheddrawings, wherein-Fig; 1' is a view partly in elevation and partly insection: of a hose coupling convenientlyem-bodying my invention andshowing the same attachedto a pipe or conduit.

Fig. 2 is a view like "Fig. renewing the coupling detached from the pipeor conduit; and

Fig. 3 is a cross section talren -as -indicated by the angled arrows.Ill-III. in Eigal.

As herein delineated; my improved coupling has a hollow. body 5 which,as. shown, may be in the form of .an. elbow whereof the inlet end/5a istapped as att to receive the threaded endof; the terminal nipple 1. of.ahose 8-. The other; end or outlet 51) of the elbow. 5 isextzernallythreaded: as at 9 for connection thereto of an annulus it to constitutea shroud or bell H prolongation beyond a circumferential internalshoulder at l2. If desired or found more convenient in practice, thebell i I may be made inte ral with the elbow. Lodged 'in an annulargroove l3 within the hell 5 Claims. (Cl. 285-170).

ii so as to lie against the shoulder I2, is a gasinner ends are pivotedto a collar l9 mounted with capacity for limited sliding movement on thediametrically reduced inner end 20a of an actuating rod 2B. Thisactuatingrod 2c is axially disposed within the outlet end of the elbow 5and extends to the exterior with fluid tightness, through a stufling box24 in the rounded wall portion ofthe elbow at the top. Adjacent itslower end, the rod Zil-is guidedin a'bearing boss 22 centrally of acrosswise web-itewithin the-elbow, and at its protruding end isprovided. with a pushpull grasp head 25. Pendent from theweb- 23 atdiametrically opposite points are prolongations 2-4 which terminate inclevises as at 25 for passage of the dogs H3 through'them. The outerends of the dogs l8 arebevelled as-at itafor camming action withsupports in the form of pins 26 extending transverselyofv the cleviseson which they rest. Disposedbetween the collar Iii-and ashoul der 262)On the rod 2i! isa. loaded. compression spring-21f which issurrounded byan upward sleeve extension ESa. of: said collar; Downward movement ofthe collar I9 is limited by a stop-nut-23 at the lower end 20a. of: therod 26. The upper protruding-end. of therod Ed. is threaded'to permit.adjustment thereon. of a collar 29.. A re"- tractable hooked keeperelement 3.6, by cooperation with the collar 29, holds the thrust rod 2i)depressed against the action of.spring.2] with the latch dogsi8 engagedbeneath thecircu-mferent-ia'l shoulderpnojection l l interiorly of theend 5b ofrtheel'bow. As shown; .thekeeperitoiis pivotally connectedbetweenears 3.1 at the exterior of the elbow 5iand providediwith'afinger press 38a; The torsion spring indicated. at 32servesto-yieldingly urge. the. hook end; of the keeper Sill inwardiormaintenance invengagement: with the collar: 2 9;,

With the actuating rod 26 depressed and locked by the keeper 3!! as inFig. 1, the spring 2! in acting upon the slide collar i9 is effective tomaintain the dogs l8 thrust outward with their ends lodged beneath theinternal shoulder of the adapter I5 on pipe it. As a result, the elbow 5is firmly secured against accidental displacement to the pipe is withthe gasket is under sufficient compression to prevent leakage betweenthe internal shoulder i2 of the elbow 5 and the top edge of said pipe.Greater compression of the gasket it may be attained through adjustmentof the collar is along the rod 20.

The elbow 5 is released for removal by pressure upon the tab 36a ofkeeper 3i! to withdraw the hook of the latter from the collar 29,whereupon the spring 2'! immediately reacts upon the slide collar [9 tolift the actuating rod 28 until the nut 28 engages said collar. The head2 is then grasped and the rod 28 pulled upward. As a result, the sleeveextension 19a eventually contacts the bottom of the cross web 23 whichthus constitutes an abutment stop therefor as in Fig. 2, with incidentalretraction of the latch dogs is from beneath the internal shoulder ll ofthe adapter 15 on pipe I5 as the cam ends of said latches slide on thepins 26. Thereupon, by continued pull on the grasp head 24, the elbow 5is bodilg lifted away from the pipe 16 as shown in Fig. 7

Application of the elbow is effected by reversal of the above procedure,i. e., the bell end Ill of the elbow 5 is telescoped over the pipe ituntil the gasket i3 seats upon the top edge of the adapter I5. Theactuating rod 20 is then pushed downward with attendant outwardcompression of spring 27 and thrusting of the latch dogs It as the camedges at the outer ends of the latter ride on the pins 26 and said endsengage beneath the internal shoulder i! of the adapter, the keeperfinally hooking itself over the collar 29 automatically under theinfluence of its spring 32 as in Fig. 1.

From the foregoing it will thus be seen that I haveprovided a hosecoupling which is simple in construction, which is quickly applied andremoved, and which is secure against accidental displacement whenattached.

Having thus described my invention, I claim: 1. A coupling for a hose orthe like comprising a hollow body; a rod constrained to endwise plmovement within the outlet end of the body; means externally of the bodyfor manipulating the rod; a latch dog having a pivotal connection at oneend with the rod and arranged for engagement of its free and behind ashoulder pro- 1 jection internally of a pipe or the like to which thehose is to be'connected; means within the body to cooperate with thefree end of the dog as and for the purpose set forth; spring meanstending to urge the rod in a direction to withdraw the dog from beneaththe shoulder projectionjand retractable keeper means accessible at theexterior of the body and operative to lock the rod against movement inthe direction aforesaid by the spring means with the dog engaged beneathsaid shouldeim' 2. A coupling for a hose or the like comprising a hollowbody; an actuating rod guided for endwise movement within the outlet endof the body and extending, for convenience of manipulation,

free end behind a shoulder projection internally of a pipe or the liketo which the hose is to be connected; a supporting rest within the bodyto cooperate with a' cam surface at the free end of the dog as and forthe purpose set forth; and retractable keeper means accessible at theexterior of the body for locking the rod against movement with the dogin latching position to prevent accidental dislodgement of the couplingafter application to the pipe.

3. The invention according to claim 2, in which the protruding end ofthe rod has a push-pull grasp; and in which the keeper is in the form ofa spring biased hook constructed and arranged to engage over a collaradjustable along the protruding end of the rod.

4. A coupling 'for a hose or the like comprising a hollow body; anactuating rod guided for endwise movement within the outlet end of thebody and extending, for convenience of manipulation, through a wall ofthe body to theexterior; a spring-biased collar mounted with capacityfor limited sliding movement on the inner end of the collar andoperative by contact with a fixed abutment internally of the body tolimit the outward movement of the rod; a latch clog pivoted at one endto the collar and adapted for engagement of its free end behind ashoulder projection internally of the pipe; a supporting rest Within thebody to cooperate with a cam surface at the free end of the dog as andfor the purpose set forth; and keeper means accessible at the exterioroi thebody for locking the rod against movement with the dog in latchedposition to preve-ntaccidental dislodgement of the coupling after itsapplication to the pipe.

5. The invention according to claim 4, in which the projecting end ofthe rod has a'push-pull grasp; and in which the keeper is in theform ofa spring-biased hook constructed and arranged to engage over a collaradjustable-along the protruding end. of the rod. r

' JAMES A. JENSEN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS 7

